Vulnerability Name:

CVE-2020-1103 (CCN-181090)

Assigned:2019-11-04
Published:2020-05-12
Updated:2021-07-21
Summary:An information disclosure vulnerability exists where certain modes of the search function in Microsoft SharePoint Server are vulnerable to cross-site search attacks (a variant of cross-site request forgery, CSRF).When users are simultaneously logged in to Microsoft SharePoint Server and visit a malicious web page, the attacker can, through standard browser functionality, induce the browser to invoke search queries as the logged in user, aka 'Microsoft SharePoint Information Disclosure Vulnerability'.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-1103

Source: XF
Type: UNKNOWN
ms-sharepoint-cve20201103-info-disc(181090)

Source: CCN
Type: Microsoft Security TechCenter - May 2020
Microsoft SharePoint Information Disclosure Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1103

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_enterprise_server:2016:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft sharepoint enterprise server 2016
    microsoft sharepoint foundation 2013 sp1
    microsoft sharepoint server 2019
    microsoft sharepoint foundation 2013 sp1
    microsoft sharepoint enterprise server 2016 -
    microsoft sharepoint server 2019